Summary Musculo-Skeletal System Anatomy

Musculo-Skeletal System
Monday, 16 May 2022 17:23


Musculo-skeletal system

1. Muscles
a. Skeletal muscle
b. Ligaments

2. Skeleton
a. Bones
b. Joints
c. Articulating cartilage
d. Ligaments

Skeletal System
BONE




Axial skeleton Appendicular skeleton
- Skull, vertebral column - Upper and lower limb bones
- Pectoral and pelvic girdle
& thoracic cage

Functions of bone
• Support
• Protection
• Movement
• Storage of salts
• Blood cells

Composition
1. Cells & fibres (elasticity)
2. Calcium salts (rigidity)

Osteoblasts • Form bone matrix
• Deposit inorganic salts & osteoid in bone tissue
Osteocyte • Mature bone cells
• Monitor and maintain bone tissue
Osteoclast • Reabsorbs bone
• Breakdown bone = calcium & phosphate




Classification of bone
Location, shape, ossification
Long bone • Tubular
• Compact bone constituents the most (thicker in shaft)
• Spongy bone and bony marrow - ends of bone
Short bone • Cuboid/round
• Thin layer of compact bone
Flat bones • Thin, curved
• 2 // layers of compact bone covering spongy bone
Irregular bones • Contain foramina



Anatomy Page 1